Josh Hartnett has hinted he and lover Scarlett Johansson have tantric sex.

The handsome actor claims he has been trying to master the mystical practice - which involves meditating while having sex to achieve a mind-blowing orgasm - and insists it is incredible once you get the hang of it.

He said: "A really dirty friend of mine gave me a book on tantric sex for mybirthday. I studied it to see what all the fuss was about. It's not easy, butit's all good."

Josh, who has been romancing Scarlett for several months, admits he is a sexaddict, and almost went stir crazy after trying celibacy for a short time.He added to Britain's More magazine: "Sex rocks! Sex is really cool! I didtry and go without it for a while once, but it didn't last long."

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